DZCV explained

Radyo Sanggunian
Callsign:	DZCV
City:	Tuguegarao
Area:	Northern Cagayan Valley and surrounding areas
Branding:	DZCV 684 Radyo Sanggunian
Airdate:	1961
Frequency:	684 kHz
Format:	News, Public Affairs, Talk
Affiliations:	Radio Mindanao Network
Language:	Ibanag, Filipino
Licensing Authority:	NTC
Power:	10,000 watts
Callsign Meaning:	Cagayan Valley
Owner:	Filipinas Broadcasting Network
Former Frequencies:	740 kHz (1961–1978)

DZCV (684 AM) Radyo Sanggunian is a radio station owned and operated by Filipinas Broadcasting Network. The station's studio and transmitter are located at Maribbay St. Ext., Brgy. Ugac Norte, Tuguegarao.^{[1] [2] [3] [4]}

DZCV is home to Cagayan Valley's pioneering amateur singing contest, Addan Ta Kabitunan. It went on air 3 years before Tawag Ng Tanghalan came to existence.^[5]

Notes and References

1. http://www.geocities.ws/piaregion2/radiostations.htm Region 2 Radio Stations
2. https://news.mb.com.ph/2016/11/14/cagayan-needs-aid-to-get-back-on-its-feet/ Cagayan needs aid to get back on its feet
3. https://medium.com/@ynielfabian/isabela-cagayan-media-persons-found-nujp-local-chapters-e1a8955e05c Isabela, Cagayan media persons found NUJP local chapters
4. Web site: PRO2 to distribute medical supplies donated by a generous businessman . November 27, 2020 . December 4, 2020 . https://web.archive.org/web/20201204213546/https://pro2.pnp.gov.ph/index.php/press-releases/783-ex-military-and-8-others-nabbed-under-pro2-oplan-manhunt-charlie-campaign-camp-marcelo-a-adduru-tuguegarao-city-pro2-regional-office-2-in-its-intensified-campaign-against-wanted-person-arrested-9-individuals-to-include-a-retired-soldier-in-separate-p . dead .
5. http://northernforum.net/things-you-probably-didnt-know-about-tuguegarao-and-cagayan/ Things you probably didn’t know about Tuguegarao and Cagayan